Best Angle Grinder of 2020 Complete Reviews with Comparisons

By Tool Scout | Angle Grinder Reviews

Best Angle Grinder

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It’s not that hard to find the best angle grinder that meets all your criteria. These versatile tools are divided into specific categories and are often accompanied by detailed spec sheets that should let you zero in on a model best-suited for you.

Of course, making sense of those specs is where things may get tricky. Take a look at the following reviews to find your new angle grinder and use the guide to understand why some features are worth more than others.

Comparison Chart

BLACK+DECKER Angle Grinder Tool, 4-1/2-Inch, 6.5-Amp (BDEG400)

Meterk Electric Angle Grinder 6A 4-1/2inch with 115mm 

Bosch 4-1/2-Inch Angle Grinder 1375A

Makita XAG04Z 18V LXT Lithium-Ion Brushless Cordless Angle Grinder

PORTER-CABLE Angle Grinder Tool, 4-1/2-Inch, 6-Amp 

Best Angle Grinder Reviews

Black+Decker BDEG400 4.5” Angle Grinder

This 6.5A angle grinder could be considered the best angle grinder if your main concern is pricing. This is an affordable power tool with an optimum size for most household and DIY projects.

Product Highlights

Pricing aside, one of the best features about the BDEG500 angle grinder is the metal casing. The metal gear case protects the internal components and extends the life of the power tool. As a result, the reliability of the motor and gears is also better, especially when compared to most models in the same price range.

This model also features a 3-position side handle. The handle makes the BDEG400 rather comfortable to use, and it should also help maintain the desired angle for longer, potentially cutting down on work time.

A spindle lock is also featured, which will make it easier to change discs. In terms of versatility, the narrow build of the BDEG500 angle grinder allows it to reach tight spaces. Of course, the narrow body also makes the device easier to operate and more comfortable.

What's to like about the Black+Decker BDEG400 4.5” Angle Grinder

The ease of use of the BDEG400 angle grinder might be more impressive than its modest price tag. The combination of comfort features, narrow build, and very durable case should help you make short work of most household repair jobs.

What's not to like about the Black+Decker BDEG400 4.5” Angle Grinder

One small drawback would be the limited accessories included. Aside from a grinding wheel and a spanner wrench, there aren’t any other accessories worth mentioning.

PROS

  • Affordable
  • Metal gear case
  • Narrow build
  • 3-position handle
  • Spindle lock

CONS

  • Only comes with one disc

Meterk 4.5” 6A Angle Grinder

With a relatively powerful motor, high no-load speed, and two handle positions, this Meterk 4.5” angle grinder is one of the best in its class and, one of the more comfortable models you can use.

Product Highlights

Meterk offers this angle grinder at a competitive price. Its 6A motor is rated at 750W maximum output, which is approximately 1HP. That’s enough power for small household repair work.

The grinder is also rated at 12,000 RPM. Taking this all in means that you shouldn’t have issues when trying to cut tile, wood, and various metals.

It’s also a comfortable handheld power tool. It caters to both right- and left-handed workers too. Its removable handle can be fitted on either side to accommodate a wide range of grips. Its size is rather small, which will make it more comfortable to hold for long periods of time.

The Meterk angle grinder also comes with a spindle lock, protective coating, a large protective cover, and a slide safety switch.

What's to like about the Meterk 4.5” 6A Angle Grinder

It’s also nice to see that you also get six discs for your money. Three are grinding discs, and the others are abrasive cutting discs for metalworking.

What's not to like about the Meterk 4.5” 6A Angle Grinder

Although it features a protective coating, the gear case is not the most durable in this price range. It may not fare well against consistent hits or heat.

PROS

  • Spindle lock
  • Good motor
  • Removable handle
  • Ergonomic grip
  • Multiple discs included

CONS

  • Average durability casing

Bosch 1375A 4.5” Angle Grinder

Bosch is one of the most reputable power tool manufacturers in the world and for good reason. The brand name is synonymous with reliability, durability, and performance, which is why you can expect to get a fair deal with the Bosch 1375A angle grinder.

Product Highlights

This is a compact 4.5” angle grinder that weighs around 3.75 lbs. It’s considered light and easy to handle. But that doesn’t mean that it’s flimsy. The tool has a durable epoxy-coated casing which protects the motor and other internal components.

The 1375A also has a sealed switch. This boosts the durability even further as it eliminates the risk of getting dust and debris inside the mechanism of the switch. In terms of comfort, the grinder comes with a standard ergonomic top handle.

It also features a 2-position side handle which should allow you to use the 1375A grinder with more grinding and cutting techniques and at various angles — all with better stability.

In regard to power, the 1375A has been fitted with a 6A motor. This gives the grinder an 11,000 RPM no-load rating, which is pretty good at this price range and size. The motor has a smaller field diameter, which should also improve the power and ease of operation.

What's to like about the Bosch 1375A 4.5” Angle Grinder

One of the coolest features is the Bosch Service Minder Brush System. This is a part monitoring part safety feature. The system is responsible for shutting off the grinder when it requires some form of maintenance, even preemptive maintenance. Therefore, maintaining the 1375A is easier than other models.

What's not to like about the Bosch 1375A 4.5” Angle Grinder

As it is with most 4.5” angle grinders, the Bosch 1375A also comes with only a standard abrasive grinding disc. If you want to use the tool for cutting and polishing too, additional accessories and investment will be required.

PROS

  • 2-position handle
  • Epoxy coating
  • Service Minder system
  • Good motor
  • Reliable performance

CONS

  • Single disc accessory

Makita XAG04Z Cordless Angle Grinder

If you’re less budget-constrained and you’re looking for very powerful, very versatile angle grinders, then perhaps the Makita XAG04Z can be your next workshop addition. It’s a high-tech cordless unit with great power efficiency and a rather compact build.

Product Highlights

As with most cordless angle grinders, the XAG04Z is on the heavier side because of its battery. That being said, this model is a breeze to handle due to its overall ergonomic design, rubberized grip, and comfortable handle.

This model is also a hybrid that can accommodate both 4.5” and 5” discs. It comes with quite a few accessories, which include: cutoff wheel guard, tool-less wheel guard, lock nut wrench, thin cut off wheel, grinding wheel, and side handle.

For monitoring purposes, the grinder is equipped with a 3-level battery gauge. The XAG04Z is also loaded with safety features for overload, over-discharge, and overheating protection.

In terms of power and speed, the brushless motor can deliver around 8,500 RPM at no load and plenty of torque for cutting through thick materials. Another feature worth mentioning is the soft-start feature which protects the motor and gears by preventing startup reactions.

What's to like about the Makita XAG04Z Cordless Angle Grinder

The ease of operation is perhaps the main highlight of this model. Along with the obvious power and reliable performance courtesy of Makita, the ease of use makes this a beginner-friendly tool. Its main advantage, of course, remains the cordless design which spares you from having to find your footing and minding the power cord.

What's not to like about the Makita XAG04Z Cordless Angle Grinder

Given the fact that the battery is not included, the Makita XAG0Z might be slightly expensive for some homeowners, but it’ll work with the battery from other Makita LXT tools. It’s probably best suited for professional metal workers, plumbers, and others that can justify the expense of the investment.

PROS

  • Multiple safety features
  • Comfortable design
  • Grinding and cutting accessories included
  • Good battery life
  • Efficient energy transfer

CONS

  • Battery not included

Porter Cable PCEG011 4.5” Angle Grinder

The Porter Cable PCEG011 angle grinder is a small but powerful tool. It comes with multiple safety features as well as various comfort features that make it a beginner-friendly metalworking tool.

Product Highlights

One of the best features is the soft motor start. This allows for smooth startups and eliminates the risk of excessive grinding or cutting when powering the device. A spindle lock button allows for smooth continuous operation. It also makes it easier to switch accessories.

The tool-less guard is also nice to have as it makes repositioning easier and faster. The handle can be placed on either side or at the top. Because of this, the PCEG011 angle grinder will accommodate right- and left-handed users.

Porter Cable also implemented a no-volt switch. This is a safety feature for both the device and the work you’re doing. The switch prevents accidental restarts, which can occur after a power outage or disruption should you forget to turn the grinder off.

Another cool feature is the metal gear casing which greatly improves the durability of the tool. Of course, this also puts the PCEG011 on the heavier side.

What's to like about the Porter Cable PCEG011 4.5” Angle Grinder

The price point of the PCEG011 is one of the lowest among 4.5” angle grinders. Considering all its features and build quality, it’s more than a fair price too.

What's not to like about the Porter Cable PCEG011 4.5” Angle Grinder

The PCEG011 comes with limited accessories. It doesn’t come with a cutting disc, extra brushes, or with an auxiliary handle that can let you use more grinding techniques.

PROS

  • Affordable
  • Metal gear casing
  • Tool-less guard
  • 3-position handle
  • Accidental restart prevention

CONS

  • Limited accessories included

BUYER'S GUIDE

Disc Size and Types

The most common disc size is 4.5” for the fact that it’s the most popular class of angle grinders. It’s also considered by many the most versatile size for a handyman’s arsenal. But that’s not to say that that angle grinders can’t be larger; they can be as large as 7 or 9 inches, which are better for deep cuts and for polishing larger areas.

With that in mind, the size of the disc is just one of many important features. You should also consider the disc types that come with the grinder before buying or at the very least, the disc types that are compatible with the grinder.

Cutoff discs

These are used to cut through pipes, bolts, rods, rebar, and other hard materials.

Grinding discs

Grinding discs can be used for shaping edges or to sharpen various garden tools and dull edges.

Diamond-tipped cutting blades

The diamond-tipped teeth give them enough cutting power to be used on tile, granite, concrete, masonry, and so on. They can also be used for both dry and wet cutting.

Sanding pads

With sanding pads, you can clean surfaces off old paint. You can also use them for fine sanding or coarse sanding, depending on the abrasiveness of the disc.

Aluminum oxide wheels

This type of disc is commonly used in woodworking.

Wire brushes

Wire brushes are used to remove rust and to remove flaky paint off various metals.

Silicon carbide discs

These discs are ideal when you’re trying to shape metal. They can help you grind down various excess materials such as welding.

Motor Power

Motor power is an interesting subject. You may find that the motor power can be expressed in watts, amps, volts, or CFM (cubic feet per minute). Of course, Watt is the unit for electrical power. The rest are power broken down or translated.

As you might know, power is the product of current and voltage (P = IV). Therefore, if you know the current (A) and voltage (V), you already know the power. CFM, PSI, RPM, etc. is a translation of motor power to real-world usage. So, instead of telling you this grinder is 800W, a manufacturer might simply tell that it translates to 8,000 RPM, for example.

Corded angle grinders have their input power expressed in current (since we already know the voltage).   For pneumatic grinders, manufacturers use CFM and PSI to show what the power rating translates to.

In other cases, you may find that horsepower is also used. For a quick comparison, 1,000W roughly translates to 1.34HP.

Power is very important. Usually, the larger the grinder, the larger the motor, and therefore, the higher the power. But what’s most important is to match large discs with a high output.

This is one of the ways of ensuring smooth polish and deep cuts with the larger wheels. Another thing to remember is this. For two grinders with the same power rating, the speed will be inversely proportional to the torque.

Dust Management

Dust management is important for two reasons. For one, good dust management increases the longevity and reliability of an angle grinder. Secondly, it’s a safety feature that prevents you from getting hit directly by dust and debris coming at you at high speed.

Various manufacturers tackle dust management in their own unique way. Some are obviously better than others at this, but the main principle remains the same. Angle grinders are fitted with a vacuum attachment that ejects dust and debris out the opposite side of the machine, away from where you’re working.

Comfort

There’s no reason why you shouldn’t want ease of use and comfort when handling a power tool. Therefore, a cordless angle grinder is arguably the best angle grinder from a comfort standpoint.

This type of tool is lighter and easier to work with. There’s no cord that can get in your way and you’re not restricted in range. Of course, there are other features that make an angle grinder more comfortable to use than others.

For example, if a cordless tool won’t deliver enough power for your application, you should at least look for an ergonomic non-slip grip. You should also look for removable or at least adjustable side handles. These don’t just make it more comfortable to use the tool, but it will also let you use it in tight spaces.

Locking triggers can also make the tool easier to use during continuous operations.

Speed Ratings

Speed ratings may seem all over the place if you’re unfamiliar with angle grinders. Some might be tempted to believe that higher is better.

This couldn’t be further from the truth. You see, speed or the RPM is given by the manufacturer as “no-load speed.” This means that it’s the maximum speed the grinder can put out without a disc installed.

What does this mean for you? It means that a smaller angle grinder may look better on paper than a larger model. But it doesn’t mean that under full load, you will be able to get a deeper cut or a better polish than you would from a larger grinder with a more powerful motor.

When comparing two grinders of the same speed rating, you should also look at the power rating in order to determine the torque. In the case of equal speed grinders, the one with the higher power output will give more torque.

F.A.Q.

How do you use an angle grinder?

Always hold an angle grinder firmly. Your free or non-dominant hand should always hold the side handle, assuming you’re not using a top handle grip.

Like all cutting power tools, always let the disc reach full speed before you bring it into contact with the work surface.

All angled grinders come with their own manuals. Therefore, there might be slight differences in how to approach and use them.

Just remember to always cut and grind at the recommended angles to avoid injury. Also, remember to avoid applying too much pressure when cutting. This could cause an average quality disc to bend or break.

How do you change the blade on an angle grinder?

First, you’ll have to turn off the grinder and remove the power source. This is necessary to avoid any accidental power-ups while you’re changing the blade or disc.

You can either remove the blade guard first, with a screwdriver, or proceed to removing the disc. There might be slight differences to this step, depending on the model of your angle grinder. However, for the most part, this should work on all angle grinders.

Press the spindle-lock button if the grinder has one and try to lock the disc in place. Keep holding the button down as you’re removing the clamping flange with the special wrench. Remove the disc and replace it with a new one. Be sure to install it in the same way as the old one.

What is an angle grinder?

An angle grinder or disc grinder is a handheld power tool often seen on construction sites and in the metal fabrication field. It is used for abrasive cutting (grinding) and polishing, among other tasks.

The angle grinder is distinguishable from similar tools by the fact that the gear head and disc form a 90-degree angle. Other notable differences may include increased motor power and overall versatility.

What is an angle grinder used for?

The versatility of angle grinders comes from its design and ability to use different discs. Although the main use of an angle grinder is grinding, the same tool can be used to polish, cut, sharpen, and clean various materials.

What can you do with an angle grinder?

An angle grinder can be the ideal tool to grind out loose mortar. You can also use it to cut through concrete and stone or to cut tiles to size. For cutting tile, it’s best to use a dry-cut diamond disc.

When using a cutoff disc, the angle grinder can help you make short work of various metal cutting tasks such as: cutting rebar, wire fencing, rusted bolts, angle iron, and so on. Note that angle grinders can also be fitted with wire brushes.

A wire brush disc or wheel will allow you to remove flaking paint and remove rust. Depending on the type of brush, you can use it for flat areas or uneven surfaces. Last but not least, you can also use an angle grinder equipped with a grinding wheel to repurpose old tools.

Grinding discs can help you sharpen dull blades or dull edges on tools such as shovels, axes, hoes, and others. It’s worth pointing out that this type of work requires skill and care. That’s because this can overheat the blade and affect its sharpness retention.

FINAL VERDICT

Clearly, finding the best angle grinder for your projects is not an easy task. But it can be fun to compare various power tools from top manufacturers to see what features make them uniquely qualified for the job.

If you’ve landed on the Black & Decker BDEG400 4.5” angle grinder, then you’ve made a good choice. Its consistent performance, comfortable design, and adjustability make it a reliable workhorse for many household chores, art projects, and certain worksite jobs.

However, if you’re strictly looking to pay the least amount of money without compromising performance, then the Porter Cable PCEG011 angle driver is a good tool to have in your arsenal as well.

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